Home / 69,091.96-103,637.94-19,172.07

Finding the Fourth Proportional to 69,091.96, 103,637.94 and 19,172.07

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Solution

The fourth proportional to 69,091.96, 103,637.94 and 19,172.07 is: 28,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,091.96 : 103,637.94 = 19,172.07 : x
  2. Step 2: Convert to fraction form
    69,091.96/103,637.94 = 19,172.07/x
  3. Step 3: Cross multiply
    69,091.96x = 103,637.94 × 19,172.07
  4. Step 4: Simplify right side
    69,091.96x = 1,986,953,624.07
  5. Step 5: Solve for x
    x = 1,986,953,624.07/69,091.96
  6. Step 6: Final answer
    x = 28,758.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.